NPPES file of Aug 9, 2026

Doctors and health care providers in Tucson, AZ

18,788 individual NPPES records list a practice address in Tucson, 2nd of 137 Arizona cities. The largest group is behavior technician: 1,116, 6% of the city's records, against 6% across Arizona. Page 246 of 376.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Tucson

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Tucson in Arizona

  • Rank in Arizona2nd of 137 cities by records
  • Share of the state14.9% of Arizona's records
  • Specialties present25 or more taxonomy codes
  • Top three groups16.1% of all records
  • Behavior Technician rank2nd of the 10 Arizona cities with the most

Compared with Arizona as a whole, Tucson has 1.9× the state's share of emergency medicine physician records and 0.52× its share of physician assistant records.

Providers in Tucson, alphabetically

  1. Siavhan O'Brien, FNP-CPrimary Care Nurse Practitioner1821924002
  2. Stephanie O'Brien, DOHospitalist Physician1346944105
  3. Marc O'Cleireachain, MDSurgery Physician1235306549
  4. Michelle O'Cleireachain, PSYDClinical Psychologist1063035541
  5. Colleen O'Connell, PHARM.D.Pharmacist1023492808
  6. Lance O'Connell, LCSWClinical Social Worker1326290420
  7. Denett O'Connor, LISAC MASTERS MGMTAddiction (Substance Use Disorder) Counselor1053794206
  8. Janet O'Connor, EDS, LPC, LISACProfessional Counselor1194782177
  9. Jennifer O'Connor, LPCProfessional Counselor1891123188
  10. Kendra O'Connor, PHARMDPharmacist1689339970
  11. Lindsay O'Connor, LMSWSocial Worker1477446961
  12. Marylee O'Connor, PHARMDPharmacist1255513016
  13. Michael O'Connor, D.C.Chiropractor1043363781
  14. Michelle O'Connor, OTR/LOccupational Therapist1760239487
  15. Patrick O'Connor, MDPediatrics Physician1679507198
  16. Sherrilyn O'Connor, RNFARegistered Nurse First Assistant1497821177
  17. Maureen O'Connor-Strout, MC, NCC, LPCProfessional Counselor1407448293
  18. Christine O'Dell, LPC, LISACMental Health Counselor1497025415
  19. Arianna O'DonnellPhysical Therapist1215485446
  20. Jillian O'Donnell, M.D.Gynecologic Oncology Physician1154701530
  21. Nancy O'DonnellProfessional Counselor1265701817
  22. Bernadette O'Grady, WHNPWomen's Health Nurse Practitioner1336424811
  23. Caitlin O'HanlonMental Health Counselor1134005770
  24. Charles O'Hara, PH.D.Clinical Psychologist1134384340
  25. Nancy O'Kane, LCSWClinical Social Worker1255353207
  26. Jorge O'Leary, MDFamily Medicine Physician1083610109
  27. Stephanie O'Leary, MS OTR/LOccupational Therapist1093990418
  28. Robin O'Neal, D.C.Chiropractor1225077043
  29. Alexis O'NeillPharmacist1003517475
  30. Christopher O'Neill, MDAnesthesiology Physician1063406759
  31. Jennifer O'NeillProfessional Counselor1225391337
  32. Starlyn O'NeillOccupational Therapy Assistant1528291523
  33. Jaime O'RourkeNurse Practitioner1316611171
  34. Kayla O'Shaughnessy, RNRegistered Nurse1891675609
  35. Scott O'ShaughnessyPharmacotherapy Pharmacist1801657036
  36. Lindsey O'SheaSpeech-Language Pathologist1174183263
  37. Noreen O'Shea, ES, RNPsychiatric/Mental Health Registered Nurse1285266460
  38. Zoe O'Warren, PAMedical Physician Assistant1699329458
  39. Christine Oagley, OTR L, CHT, L.ACOccupational Therapist1215075676
  40. Wayne Oakeson, MDAnesthesiology Physician1083608756
  41. Kelsie Oatmen, MDPediatrics Physician1316400583
  42. Samuel Oats, MDVascular & Interventional Radiology Physician1700264579
  43. Adam Obaidi, M.D.Cardiovascular Disease Physician1578806212
  44. Charlotte Obannon, LCSWClinical Social Worker1710061189
  45. Oluwadamilola Obawede, MDNeurology Physician1972287357
  46. Mumina ObeidPathology Specialist/Technologist1487207593
  47. Tracy Oberg, M.D.Emergency Medicine Physician1023228764
  48. Katy Obert, LMFTMarriage & Family Therapist1336796861
  49. Kelly Obert, PSYDClinical Psychologist1427343235
  50. Piyathida Obert, MDAnesthesiology Physician1386227296

The largest Arizona cities

  1. Phoenix31,399
  2. Scottsdale11,008
  3. Mesa9,151
  4. Gilbert5,802
  5. Chandler5,497

All of Arizona →

How to read this directory

Tucson, Arizona appears in the CMS National Plan and Provider Enumeration System with 18,788 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Tucson - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Tucson practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Tucson is weighted toward Behavior Technician (1,116 clinicians, followed by Pharmacist with 999 and Family Nurse Practitioner with 907). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Arizona's population, Tucson reports roughly 252.8 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Tucson patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Tucson, AZ?

There are 18,788 registered healthcare providers in Tucson, AZ, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Tucson?

The most common specialties in Tucson are Behavior Technician, Pharmacist, Family Nurse Practitioner, Physical Therapist, Clinical Social Worker. Behavior Technician has the most providers with 1,116.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.